Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 7 of 7

Thread: PH / Chlorine using Chemigen D10

  1. Back To Top    #1

    Join Date
    Jan 2016
    Location
    Perth
    Posts
    5

    PH / Chlorine using Chemigen D10

    hiya
    I have a chemigen D10 and the orp was set to around 650
    everything was good but when I test my chlorine its high around the 3 - 4
    ive keep dropping the ORP but its not doing to much
    its down to 590 and the level of chlorine is 4.5
    PH is OK around 7.5
    What happening, what am I doing wrong.

    Thanks


    Standard sand filter
    Pool 64,000 litres

  2. Back To Top    #2
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Location
    Midland TX
    Posts
    15,001

    Re: PH / Chlorine using Chemigen D10

    Hello and welcome to the forum Judge!

    That isn't bad at all in terms of FC residual, but it really depends on what your Cya level is. I would encourage first to look at Pool School, and begin with the ABCs. From there, see what the recommended levels are that we suggest, and acquire a proper test kit to determine that. We base everything on testing your own water, and adjusting accordingly. Others will be along to elaborate, but this is where we will suggest you starting out. If you have a full and proper test kit, please post up a full set of numbers, and we can go from there.
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

  3. Back To Top    #3
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Location
    Columbia, SC
    Posts
    8,494

    Re: PH / Chlorine using Chemigen D10

    I'm going to admit, in some areas I know just enough to get myself in trouble - but here goes.

    Do a little searching on the site will show that ORP is really not a reliable method of monitoring chlorine as it is affected by other parameters in the water.

    Patrick has hit the nail on the head, we base our pool care system on accurate testing and only adding what the pool needs, when it needs it. To do that you need your own accurate test kit. The problem you may have is finding a test kit based on Taylor reagents down under. This post talks about a kit that is apparently available - CCL vs TF-100 Results

    As Patrick pointed out, the first step in understand our methods and why the chlorine/CYA relationship is so important is reading ABCs of Water Chemistry
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

  4. Back To Top    #4

    Join Date
    Jan 2016
    Location
    Perth
    Posts
    5

    Re: PH / Chlorine using Chemigen D10

    Thank you for your reply
    I do have a electronic Tester and this is displaying the high chlorine reading. I do calibrate the tester often.
    its just that I am lowering the ORP setting without much change to the chlorine level as that's stayng high.
    I will test the CYA,TA,CH today

  5. Back To Top    #5

    Join Date
    Jan 2016
    Location
    Perth
    Posts
    5

    Re: PH / Chlorine using Chemigen D10

    ok tested the
    Calcium Hardness 231
    Cynuric Acid 45
    Alkalinity 129
    PH 7.5
    Chlorine 3.5
    On the controller the ORP is set on 595, PH set on 7.3

  6. Back To Top    #6
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Location
    Midland TX
    Posts
    15,001

    Re: PH / Chlorine using Chemigen D10

    Ok,

    How are you testing for FC, (Free Chlorine) and how are you calibrating the sensors? There are a number of things that can effect the ORP readings besides Chlorine, so it alone should not be relied on for accurate FC levels. As for the pH, how are you verifying the readout?
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

  7. Back To Top    #7

    Join Date
    Jan 2016
    Location
    Perth
    Posts
    5

    Re: PH / Chlorine using Chemigen D10

    Hello
    I have a palintest 6 and all the tablets that goes with it.
    The pool is stable with all the testing and I did get a third party to test it and its all OK
    its just the ORP reading that is set on about 600 now

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •